Mounting instruction Please read carefully before installation

Transcription

1 Professional solar systems! Mounting instruction Please read carefully before installation Solarbayer GmbH (09.13) 1

2 Technical specifications CPC 12 CPC 18 type of mounting on roof (pitched/flat roof) gross surface area m² 2,16 3,21 aperture surface area m² 1,89 2,84 number of tubes height mm A width mm B depth mm C interval flow and return line mm D weight unfilled kg collector capacity Liter 1,74 2,60 max. operating pressure bar 6 6 stationary temperature C peak output per module W peak (G*=1000W/m², η 0 ) conversion factor η 0 0,718 thermal conductivity a 1 W/(m²K) 0,974 thermal conductivity a 2 W/(m²K²) 0,005 incident angle modifier IAM50 0,87 collector glazing safety glass connections CU 18 x 1,0 absorber with evacuation tube absorber coating CPC reflector casing thermal insulation collector U shaped tube CU selective AL N/AL highly polished auminum compressed rock wool norm DIN EN hydraulic interconnection distance between collectors permissible collector tilt recommend storage tank dimension max. 6 collectors in a row approx. 50 mm (stand kit available) 50 liter per m² collector surface 2 Solarbayer GmbH (09.13)

3 C D A Manometer Manometer Entlü er VSG Entlü er VSG B C MAG MAG A Right Self draining possible. The solar medium will be ejected almost completely when the system is in stagnation. Wrong Self draining not possible. Solar medium ist left in the collector. Heavy steam formation in, high thermal stress of the system components. Connection example up to a maximum of 6 collectors Connection example (Tichelmann) for larger collector arrays F F single row single row F F F F double row double row three rows These schemes are only an installation example and do not replace technical planning! four rows Solarbayer GmbH (09.13) 3

4 Safety regulations Carefully read the safety instructions before commencing the installation. It s for your own safety. Please follow the structural instructions if the installation location of the solar system is above 600m sea level or possibly exposed to large amounts of snow (higher than zone 4). The installation needs to be carried out on a roof that is capable of bearing that load. The static bearing capacity needs to be checked on site before the installation. The collectors can either be transported vertically or horizontally. Attention: Breakage of glass. Store the collectors in a dry and shadowy place. The protections of the manifolds have to be removed before the solar collectors are exposed to the sun and heat themselves. Working on the roof Appropriate safety measures have to be arranged. Familiarize yourself with the general regulations of accident prevention for construction work of your professional association or let yourself be instructed by an appropriate person.the following aspects have to be respected to achieve a secure installation of the solar system: always use fall protection while working on a roof respect safety regulations when using a ladder while working on roof coverings with corrugated sheets the risk of breaking through exists secure workplaces on steep roofs safety clearances have to be met if an aerial pipeline leads across the roof up to V >1m, more than V to V >3m, with unknown voltage >5m. always wear safety goggles and gloves while working with an angle grinder Flat plate collectors can achieve a stationary temperature of over 200 C due to incident light. The risk of burns exists at the connections of flow and return. Always cover the collectors on sunny days during the installation Even regular daylight might cause the fluid in the collector to vaporize. This vapor leaks from the collector connections. Possible risk of scalding Attention: glass Don t extent mechanical pressure on the glass covering. Glass splinters might evoke cuts Wear safety goggles and gloves while installing the solar system to avoid injuries due to possible damages Electric connections Electric installations have to be accomplished by a licensed tradesman subject to the German regulations VDE 0100 and to those of the local power company.! Caution frost damage: The installation needs solely to be filled with solar fluid not with water only. This is also necessary in summer. Due to the special high selective coating temperature drops into the sub zero area could occur during night time which can lead to the destruction of your solar system! 4 Solarbayer GmbH (09.13)

5 Mounting dimensions 1 m 1 m 1 m 1 m Minimum distance from roof edge: Minimum distance of collector array form roof edge: 1 meter (except: eaves with pitched roofs) With existing lightning protection system: minimum distance from this device: 1 meter collector mounting rail B standard roof hooks rail bond A Distance between roof hooks (standard hooks and slate tile roof hooks) CPC 12 CPC 18 collector height (mm) collector width (mm) A = distance (min. max.) (mm) approx approx B = distance (min. max.) (mm) Solarbayer GmbH (09.13) 5

6 Installation material for standard roof tiles Roof hooks coach bolts (M 8), hexagon nuts with flange torx screws (5x60 mm) with patented drill bit and type approval for fixing the standard hooks on the rafter coach bolts M10 for fixing the collector bearing rails on the roof hooks and the collector mounting rails aluminum collector mounting rail (upper and lower rail are identical) for fixing the collectors 6 Solarbayer GmbH (09.13)

7 Installing the roof hooks on standard tiles Diese Teile werden benötigt: roof hooks 1 Pre mount the roof hook and the base plate, do not yet fasten the bolts. Unroof the rafters and mount the base plate with the torx screws onto the rafter. Always make sure that the roof hook is seated in the tile s bulge. The base plate should additionally be fixed with the roof batten when the bearing surface seems to be problematic. torx screws 5 x 60 mm 2 Make sure that the roof hook has approx. 2 3 mm too much play to the tile. There happen to be tiles that ask for a log of wood as distance piece. Now screw the roof hook solidly onto the base plate with a 13mm flat wrench or ring wrench.! The pictures illustrate the mounting on the roof battens. You probably need longer wood screws, depending on the constructional circumstances of your roof, to guarantee a stable connection between rafter and hook. With possible higher snow loads (grade el. over 600 m sea level, > 2,3 kn/m²) the tiles underneath the hook should be replaced by metal tiles! 3 Grind off as much material from the tile as needed, with the help of an angle grinder, so that the roof hook perfectly fits underneath the tile. Afterwards retile the roof. No grind works on the roof (risk of falling) Next step: Installing the collector bearing rails Solarbayer GmbH (09.13) 7

8 Special solution: Installing the plain tile hooks Diese Teile werden benötigt: Expose the rafters and screw the plain tile roof hook onto the rafter with the torx screws. This kit can generally be used for most types of tiles that are plainly seated. roof hook for plain tiles (special equipment ) torx screws 5 x 60 mm! The pictures illustrate the mounting on the roof battens. You probably need longer wood screws, depending on the constructional circumstances of your roof, to guarantee a stable connection between rafter and hook. With possible higher snow loads (grade el. over 600 m sea level, > 2,3 kn/m²) the tiles underneath the hook should be replaced by metal tiles! Next step: Installing the collector bearing rails 8 Solarbayer GmbH (09.13)

9 Special solution: installing the hanger bolts Diese Teile werden benötigt: self locking nut M12 self locking nut M12 self locking nut M12 sealing hanger bolt moutning rail supporter 1 Define the intervals of the drill holes according to the dimensions of the collector. Drill them in a straight row using a plumb line. Drill only on stable substructure Pre drill with 10mm afterwards use 16mm for the tiles (roof covering). Screw the hanger bolt through the tiles onto the pre drilled rafter. Fix the sealing together with the hexagon nut with flange. Adjust the interval for the mounting rail supporter by means of the nuts. The hanger bolt has a hexagon head (wrench size 8 mm), it can be screwed in by means of a drill chuck. By this a safe installation of the hanger bolt can be guaranteed. Position of the hanger bolt always on the wave crest not in the wave trough. Stockschrauben (Sonderzubehör) Next step: Installing the collector bearing rails Solarbayer GmbH (09.13) 9

10 Special solution: Installation with stand kit recommended tilt angle (guide value for Germany): supplementary heating 60 heating up DHW (all year) 45 heating up DHW (summer) 25 Telescopic U profile to adjust the collector inclination. The U profiles can be telescoped if the collector should be inclined in a weaker way Two stainless steel screws (M8x50) and self locking nuts are used as locking device. Stand kit for the installation on standard roof hooks for tiled roofs Special solution: plain tile hooks Installing the basic hoop on plain tile hooks Special solution: hanger bolts Installing the basic hoop on hanger bolts The figure shows the ready installed base frames on standard roof hooks (with collector bearing rails). Each basic hoop is fixed with a screw M8x55 and a self locking nut. Next step: Installing the collector mounting rails 10 Solarbayer GmbH (09.13)

11 Special solution: Installation with a flat roof stand kit recommended tilt angle (guide value for Germany): supplementary heating 60 heating up DHW (all year) 45 heating up DHW (summer) 25 C Telescopic U profile to adjust the collector Two stainless steel screws (M8x50) and self locking nuts are used as locking device. B A Dimensions of the flat roof stand kit CPC 12 CPC 18 distance A approx mm approx mm depth B 1600 mm 1600 mm telescope heightc extendable to approx. 65 extendable to approx. 65 coach bolts M 10x20 screws M 8x50 self locking nuts Calculating the clouding for flat roof installation (example: vertical angle of the sun 17 on (Germany) collector inclination (α) min min. 65 a a CPC 12 distance (b) 3,65 4,85 5,40 CPC 18 distance (b) 3,65 4,85 5,40 b c Instruction for the installation/fastening of the stand kits: the best solution is to screw the stand kit onto the subsurface it would be possible to use ballast in order to protect the panels against wind load! Due to the different local conditions it is impossible for Solarbayer to make a general statement on the connection of the stand kit to the subsurface (advice on demand) Next step: Installing the collector mounting rails Solarbayer GmbH (09.13) 11

12 Installing the collector mounting rails These parts are necessary: 1 Insert the coach bolts into the slot of the collector mounting rails 2 Insert the collector mounting rail together with the coach bolts into the long slot of the standard roof hooks. 3 Adjust the collector mounting rail and fix it with the self locking nut. 4 This picture shows the special installation type with hanger bolts collector mounting rail coach bolt M10 with self locking nut 5 The collector mounting rails are extended with the enclosed rail bonds. Next step: Installation of the connecting hooks 12 Solarbayer GmbH (09.13)

13 Installation of the connecting hooks These parts are necessary: 1 Insert the coach bolt into the upper and lower groove of the collector. hook with nib for the upper mounting of the collector 2 Adjust the lower hook (without nib) together with the nut to the lower part of the collector, bring it to dimension and tighten the screws. This dimension has to be adjusted exactly because it cannot be changed after the installation. This applies to all collectors. hook w ithout nib for the lower mounting of the collector This nib has to be pre mounted and adjusted correctly. 3 Shift the upper hook (with nib) to the uppermost part of the collector and tighten it hand tight. After the collector is hooked up and after its connection to the other collectors, slide the hook downwards into the aluminium profile. Next step: Installing and connecting the collectors Solarbayer GmbH (09.13) 13

14 Montage und Anschluss der Kollektoren These parts are necessary: collectors 1 You have to check the dimensions of the intervals again before fitting the collectors into the rails. If necessary adjust them again according to the mounting dimensions of the rails. Now fit in the collectors into the lower rail. CPC installation kit! Grease the compression fitting before the installation (e.g. with fermit) Check the proper and safe installation of the collectors and the correct installation of the collector connections 2 Push the collectors with greased fittings together and fix them with a flat wrenchwhile holding up 3 Push the upper (hand tightened hooks) downwards until the nib of the hooks clicks into the groove of the rail. Now fix the hook with a 13mm hex key. Thus the supporting structure is solidly fixed. 14 Solarbayer GmbH (09.13)

15 4 Install the CPC connecting kit as shown in the detailed figure (left and right collector connection). Do neither cant nor damage the sealing. Fix the fitting with a flat wrench while holding up 5 Insert the sensor into the collector s sensor socket (1. collector, flow line). Afterwards pull the shrink hose over the sensor protective tube and sensor socket and shrink it on. Solarbayer GmbH (09.13) 15

16 Initial operation Determine the system s operating pressure and primary pressure of the expansion vessel The professional adjustment of the solar expansion vessel s primary pressure and the operating pressure is the premise for a trouble free operation of the solar system as well as for a long operating life of the solar fluid. operating pressure solar system** Primary pressure expansion vessel** Example: system height* 9 meter Result: operating pressure system ** primary pressure vessel*** 2,4 bar 1,9 bar system height* in meter * The system height is the measured height from the manometer of the solar station to the highest position in the collector array ** The system s operating pressure has to be created with a filling unit after professional de airing of the sysem and can be checked on the manometer of the solar station *** The primary pressure of the expansion vessel is pre set to 2,5 bar (caution: der Ethe set pressure is to be adjusted according to the determined value of the chart) Solar fluid LS Only use our solar fluid LS. The ready to use special heat transfer fluid with high thermal load capacity guarantees antifreeze protection up to 28 C.! CAUTION: The collectors have to be operated with antifreeze fluid even when the outside temperature is above freezing. 16 Solarbayer GmbH (09.13)

17 Solar flow line Solar return line Rinse The solar system has to be rinsed with the ready mixed heat transfer fluid! bleeding device thermal loop min.. 10 x pipe diameter connection for filling and rinsing the system *An intermediate tank (VSG) has to be installed with: vacuum tube collectors collector arrays of more than 10 m² attic heating centers with simple pipeline length < 10 m Remains of liquid might stay in the system depending on hydraulic connection resp. system. Hence, it is necessary to rinse the collectors with solar fluid because steam jets or freezing might lead to damages. Our flat plate collectors are only to be used with solar fluid L. pressure direction VSG* MAG collection tank (e.g. empty solar fluid can) Course of action: check if all screwed connections are tightened check the primary pressure of the solar expansion vessel at zero pressure, if necessary adjust to 2,5 bar switch the solar station s ball valves of flow and return to 45 that will open the gravity brakes close hex key of flow regulator connect the hoses of the filling station with the corresponding valves open any other valve (if existing) adjust the inversion valve (if existing) to manual ; convert the exits one after the other during the rinsing (if possible control them electrically with the control unit) the solar system can now be flushed in both directions; keep an eye on the manometer don t rinse/fill the solar system when it is under direct exposure to light or when the storage tank temperature is > 60 C the rinsing has been successful when the fluid returns clean and without air bubbles into the container operating pressure has to be at least 3 bar close the filling and draining valves and completely open the flow regulator open the ball valves and put the switching valves (if existing) the solar system is now ready for operation Pay attention to possible separate guidlines of the manufacturer of the solar pump concerning the rinsing process. Solarbayer GmbH (09.13) 17

18 Adjusting the flow rate Solar pump RPM controlled: e.g. when using the solarbayer multi loop controller SR 0502 or SR 0603 MC Turn the hex key at the regulation valve as far as possible to the left, it is now completely open. The flow rate is controlled yield optimized by the control unit. Activate RPM control ( ON ) Please read carefully the controller manual. Solar pump without RPM control: Adjust pump function to manual on the controller. Turn the hex key at the regulation valve as far as possible to the left, it is now completely open. Adjust pump to power stage II and meter the flow rate at the flow meter. If necessary boost the power stage until the calculated flow rate is achieved (cf. adjusting flow rate). Hint: always reduce the power stage before throttling the flow rate for electricity saving reasons! The regulator valve stays completely open. Recommended minimum flow rate Solarbayer flat plate collectors: 25 l/m²hh Example: 6m² x 25l/m²h = 150l : 60 min. = 2,5 l/min. Adjust the calculated flow rate at the screw in bolt of the regulation valve (display shows l/min.) while pump is running (turning the screw right reduces flow). Pay attention to the guidelines of the pump manufacturer concerning the flow rate adjustment. 18 Solarbayer GmbH (09.13)

19 Piping Flow and return lines Guiding value: collector surface in m 2 copper pipe mm Solarpipe up to DN 16 up to DN 20 from 28 on 28 DN 25 Attention: determine bigger dimensions if the pipelines are longer than 10m. Pipeline connections: hard soldering (flux free hard solder according to DIN 8513) pressing (only with fittings that are authorized for permanent temperatures >150 C and an operation with propylene glycole by the manufacturer) Thermal insulation of the pipelines the pipeline insulations have the following characteristics: short time temperature resistance > 150 C (e.g. fiberglass, rubber) outdoor parts must be UV resistant and weatherproof (e.g. sheet metal jacket) insulation thickness = pipeline diameter (Minimum) (based on a K value of 0,04 W/mk) Example Profi Befüllstation PRO Leistung 230 V / 1250 Watt Max. Temperatur + 50 C Inhalt 25 Liter, Gewicht 18 kg Bestell Nr.: Backup heating with solar (DHW tank with buffer storage tank): Optional: retrofitting a Solarbayer wood log boiler system with solar to an existing heating system This scheme is only an installation example and does not replace technical planning! Solarbayer GmbH (09.13) 19

20 Maintenance In order to keep your high quality Solarbayer solar system in constant and perfect operating state we recommend an annual maintenance and check of the complete system by a specialist. Minimum requirement for a professional check/maintenance: check the solar fluid with a refractometer (can be bought at our company) check ph value of heat transfer medium. Note: when the ph Wert is < 7 the fluid needs to be changed leakage test as well as rinse and clean the system by the aid of the Solarbayer professional filling unit check the tightness of all connections and mounting elements sight check all collectors for probable defects pressure check of the expansion vessel, as well as a check of all safety devices check all moveable and electrical components check the tanks according to their reliability and security local conditions (e.g. hydraulic systems, electronics, etc.) might necessitate further checks Professional filling unit Vario 1200 This compact filling and flushing has especially been developed to suit the requirements of HVAC installers and convinces with its versatile application possibilites. Suitable for larger collector arrays. Brief description For the initiation and maintenance of closed systems such as solar systems, floor and wall heating. For cost saving rinsing, pre bleeding and filling in one go. robust, high performance pump with water proof onoff switch stainless steel pump casing transparent, pressure proof flow and return hoses for visual control ball valve at the tank s bottom for complete draining solid wheels ready to use unique cost performance ratio Professional filling unit Vario 1200 motor 230 V / 1200 Watt max. perm. fluid temp.: +90 C max. pumping head: 80 m Order number: Solarbayer GmbH (09.13)

21 Mitgeltende Vorschriften für solarthermische Anlagen The general and special quality and test regulations are only applicable in combination with the applicable laws, regulations and norms and their sections that refer to the scope of application of quality regulations for solar systems. The most recent version is to be kept as basis for the quality regulations: BGI 656 Personal protective equipment against falls correct use, BGR 203 Working on roofs, BGV A1 Accident Prevention Regulation Principles of Prevention, BGV A2, A3 Electrical Installations and Equipment, BGV C22 Construction work, Chemicals Act (ChemG), DIN 1055 Actions on structures, DIN EN 1057 Copper and copper alloys Seamless, round copper tubes for water and gas in sanitary and heating applications, Technical rules of DVGW, DIN EN Copper and copper alloys Seamless, round tubes for general purposes, DIN EN 1652 Copper and copper alloys Plate, sheet, strip and circles for general purposes DIN EN Copper and copper alloys Seamless, round copper tubes for air conditioning and refrigeration Part 1: Tubes for piping systems, DIN 1988 Codes of practice for drinking water installations(trwi); general information, DIN Codes of practice for drinking water installations (TRWI); drinking water protection and drinking water quality control, DIN EN Specification for installations inside buildings conveying water for human consumption, DIN EN 1717 Protection against pollution of potable water installations and general requirements of devices to prevent pollution by backflow, DIN Water heaters, water heating installations and storage water heaters for drinking water, DIN Water heaters and hot water systems for drinking and service water; indirect heat exchangers; requirements, testing and marking, DIN EN 1991 Teil 1 3 Eurocode 1, DIN EN 1991 Teil 1 4 Eurocode 1, DIN 1946 Ventilation systems (VDI ventilation code), DIN 4102 Fire behaviour of building materials and building components, DIN 4807 Expansion vessels, DIN Testing of plastics; artifical weathering or exposure in laboratory apparatus; exposure to UV radiation, pr DIN EN Water supply Specification for indirectly heated unvented (closed) storage water heaters, DIN EN Thermal solar systems and components Solar collectors Part 1: General requirements, DIN EN Thermal solar systems and components Solar collectors Part 2: Test methods (including corrigendum AC:2002), DIN EN Thermal solar systems and components Factory made systems Part 1: General requirements, DIN EN Thermal solar systems and components Factory made systems Part 2: Test methods, DIN V ENV Thermal solar systems and components Custom built systems Part 1: General requirements for solar water heaters and combisystems, DIN V ENV Thermal solar systems and components Custom built systems Part 2: Test methods, BDH Inforamtion sheet n 34: Operational safety of solar thermal systems, DIN V ENV Thermal solar systems and components Custom built systems Part 3: Performance test methods for solar water heater stores, DVGW worksheet GW2 Connecting copper pipes for gas and water installations KTW recommendation 1 6, DVGW worksheet W 270 Reproduction of microorganisms on materias for drinking water Test methods and rating, DVGW worksheet W 551 Potable water heating systems; technical measures for the decrease of legionella growth; planning, formation, operation and restoration of potable water systems, EU Pressure equipment directive PED 97/23/EC, EEC directive 89/336/EEC Electromagnetic compatibility, EEC directive 73/23/EEC Low voltage, EEC directive 89/292/EEC Machinery, EU directive 67/548/EEC classification, packaging and labelling of dangerous substances, EU directive 91/155/EEC safety documents, Ordinance on Hazardous Substances (GefStoffV), RAL GZ 429, Roof construction, RAL RG 641/1, Copper pipe, RAL RG 641/2, brazing solder and brazing flux and solder paste for copper, RAL RG 641/3, soft solder, solder flux and solder paste for copper, RAL RG 641/4, Capillary soldered fittings made of copper pipes, RAL GZ 655, Pipe supports, Regulation guidline of the ZVDH (German Central Association of the Roofing Trade), Technical Rule for Hazardous Substances (TRGS 519), Energy Saving regulation EnEV on energy saving thermal insulation and on energy efficiency in buildings, VDI 2067 Economic efficiency of building installations, VDI 6002 Solar heating for potable water, VDI Prevention of damage in water heating installations Scale formation in domestic hot water supply installations and water heating installations, VDI Prevention of damage in water heating installations Water side corrosion, Regulation on the classification on substances hazardous to water (VwVwS), Drinking water Ordinance (TrinkwV). Instructions for lightning protection The general principles for protection against lightning are stated in DIN EN part 3 / VDE (protection against lightning, physical damage to structures and life hazard) and in supplementary sheet 2 (Photovoltaic and solar thermal systems). If a lightning protection system is installed on a structure as external lightning protection the collectors and its installation rails have to be connected to the protection system. A specialist for lightning protection has to check if either the solar system is within the range of a lightning protection system or what arrangements have to be met. Attention: It is not allowed to draw a conductive connection between the collector and the existing lightning protection system (danger of launching the lightning into the house!) A safety clearance of approx. 0,5 m from the collector array to the conductive parts of the lightning protection system has to be maintained to all sides. The exact calculation of the safety clearance is stated in DIN EN part 3. If it is impossible to keep up the safety clearance a specialist for lightning protection has to realize the necessary regulations. Furthermore it has to be considered: If the lightning protection is outdated and no longer in accordance with the norm, the right of continuance expires due to the mounting of the collectors. In this case the lightning protection system has to be revised. Source: information sheet no. 34, march 2009, Operating Reliability of Solar Thermal Systems. For further information see: Koeln.de Overload protection: In order to protect the collector sensor and the control unit against overload you can install an overload arrester. Nearby lightning might induce voltage peaks which can destroy the sensor or the control unit. Protective diodes limit the damage caused by overload to a minimum. Solarbayer control units are regularly equipped with an overload protection. Potential equalization: The solar system is to be connected to the structure s existing potential equalization by a specialist. When planning and mounting, it is always the most recent version of this guidlines and regulations that has to be paid attention to! Solarbayer GmbH (09.13) 21

22 Possible problems and trouble shooting Problem Cause Solution Pump is not working although the collector temperature is at least 10K warmer than that of the tank. No sounds from the pump can be heard No power Either temperature difference is adjusted too big or the controller does not switch Check all pipelines and fuses check controller check temperature sensor diminish temperature difference Maximum temperature is achieved. Check settings Pump shaft is blocked by deposits in the bearings Either switch to maximum rotation speed for a short time or unblock rotor. Put screwdriver into slot and turn manually Pump is broken Exchange pump. Pump is operating, but flow and return have the same temperature. Pump is very hot There is air in the system. Valves are closed check system s pressure flush complete solar system with Solarbayer filling station open valves The tank cools down during the night; flow and return have different temperatures after the pump has been turned off.; during the night collector temperature is higher than outside temperature gravity brakes do not close 100% (particles of dirt) Check the position of the red and blue handle. Probably, jammed cuttings or particles of dirt on the sealing surface. Uninstall and clean The solar gain is unusually low The pipe insulation is too thin, high heat loss; circulation is neither temperature nor time controlled. The system may have been designed incorrectly Check the layout of the system (collector size, shading, pipe length, clock timer, hot water consumption) 22 Solarbayer GmbH (09.13)

23 Warranty certification Based on the following terms of guarantee the company Solarbayer GmbH issues a 5 year guarantee for the high capacity vacuum tube collector CPC. 1. A system warranty for the complete system of the hivacuum tube collector CPC issued. The system consists of collectors, mounting kits, connection lines (Solarpipe), solar stations, expansion vessels, safety devices, heat transfer fluid, boiler and tanks by the company Solarbayer. 2. The time of guarantee is 5 years and starts with the time of delivery of the goods to the customer. The decisive date is the one noted on the packing list. 3. For a call upon guarantee it is required that the system is installed in accordance with the mounting instruction of the Solarbayer GmbH as well as in accordance with the corresponding regulations. Furthermore, the maintenance by a specialized company has to be arranged in regular intervals. The maintenance work is to be documented and proof of evidence is to be given in case of a warranty claim. The costs for the maintenance work are paid by the customer. Moreover, it is understood that the whole system corresponds to the mounting instructions. 4. The guarantee does not cover: normal wear and tear parts heavy strain and improper usage use of inappropriate heat transfer medium damages arisen by reason of chemical and electrochemical influences damages arisen by faulty storage of the system by the ultimate consumer corrosion damages caused by accumulation of humidity in between the collectors breakage of glass glass, except the defect is based on a manufacturing defect or a material defect larceny, natural catastrophes, etc. application of accessories and fluids that are not authorized by the manufacturer electrical and moveable components (pumps, control units, valves/fittings, expansion vessels...) damages in transit 5. The packing list in combination with the original, paid, invoice is regarded as guarantee certificate. 6. In case of a defect, the customer is bound to give notice of existing defects immediately to the company Solarbayer (maximum time to give notice is a fortnight after the delivery). 7. Within guarantee time accorded to the company Solarbayer, the company only provides material replacement in the following way: year: ex works year: 50 % of the value of raw material year: 25 % of the value of raw material 8. Further requirements of any kind, especially indemnity requirements, rectification of defects, redhibition and cancellation of the contract are excluded from the existing guarantee certification. The legal warranty claims are not affected by this guarantee bond. 9. The guarantee expires if defects are not reported immediately if changes are carried out that are not in accordance with the mounting instruction if original parts are exchanged without having conferred to the company Solarbayer if the required services are not accomplished 10. The customer is bound to switch off the system as long as further defects are avoided by this shut off. If the system is not switched off and further defects occur the claim under guarantee does not apply. 11. Deliveries and services are executed according to our General Terms and Conditions 12. If any regulations of this agreement may no longer be effective in law or invalid in any way the validity of the remaining regulations shall not be affected. The parties may replace the ineffective clause by a legally valid regulation that is as close as possible to the invalid one. This translation has been provided for informational purposes only and has no legal force and effect. The German version is the only official, complete and exclusive version Solarbayer GmbH (09.13) 23

24 We develop for your future System technology made in Bavaria Solarbayer GmbH Preith, Am Dörrenhof Pollenfeld Telefon +49(0)8421/ Telefax +49(0)8421/ info@solarbayer.de IStorage systems IFresh water systems IWood log boiler ISolar systems IHeat pumps This manual and the pictures and drawings within are protected by the copyright of SOLARBAYER GmbH. Technical changes and errors reserved. Valid is the most recent version of this handbook which can always be found on our homepage This translation has been provided for informational use only. 24 Solarbayer GmbH (09.13)